http://www.netvouz.com/pdboyer/tag/calendar?feed=rss pdboyer's bookmarks tagged "calendar" on Netvouz http://authenticmaya.com/maya_astronomy.htm The  Maya are well known for their precise calendar and astronomy. The four surviving written documents (which are called the Dresden, Madrid, Paris, and Grolier Codices) that they have left behind include an ephemeris that charts the heliacal risings and settings in the synodic cycle of the planet Venus and an eclipse warning table based on observable lunar and solar cycles. pdboyer Fri, 03 Dec 2010 01:05:21 GMT